During an asthma attack, three things can happen: Bronchospasm: The muscles around the airways constrict (tighten). When they tighten, it makes your airways narrow. Air. Inflammation: The lining of your airways becomes swollen. Swollen airways don’t let as much air in or out of your lungs. Mucus.

Asthma is a disease that affects your lungs. It causes repeated episodes of wheezing, breathlessness, chest tightness, and nighttime or early morning coughing. Asthma can be controlled by taking medicine and avoiding the triggers that can cause an attack.

The most important symptom of bronchial asthma is the respiratory distress caused by the narrowing of the bronchi. When the inflamed bronchi come into contact with the triggering factor, the mucous membrane of the bronchi swells, the production of mucus is stimulated and the bronchial muscles cramp. This makes breathing much more difficult.